Usually the collar of the shirt is too small, or the collar is too short and sticks to the neck, making it uncomfortable to wear. The collar of the finished garment can be enlarged, but the collar cannot be grown and needs to be redone. To put a collar on, you need to buy new fabrics of the same material and color, go to a tailor shop and ask a tailor to enlarge the collar of the dress, and make a new collar to put it on. The fabric of the shirt should be pure cotton or silk as much as possible, and no chemical fiber materials should be used; the tie should not be tied too tightly; choose a shirt with a smaller collar size; the reason why the shirt collar rubs the neck may be because the trademark label on the back of the collar is not made of good material. It may also be a skin allergy caused by polyester-cotton shirts or chemically finished cotton shirts. If it is a natural cotton shirt, it is relatively soft, has a strong skin-friendly feel, and usually does not scratch the neck. In class, I always feel uncomfortable when the collar hits my neck. It seems to be a little itchy. I want to bear it but I can't bear it, so I always pull the collar in class, which affects my study. Then I shrink my shoulders. After listening to the class for a while, my shoulders are very sore. I can't stand it. Can anyone help me? I want to leave it alone but I really can't. It's like someone scratching you with their hands. (Apply the candle to the neckline, apply a white layer on it, iron it with an iron, and iron it into the fabric fibers. In general, when dirt is stained on a shirt, the dirt will get stuck in the fibers of the fabric, making it difficult to clean. However, a waxed shirt forms a protective film, making it difficult for dirt to remain. Just clean it and it will be gone. It can be easily removed. It may be cervical spondylosis. It may be hyperthyroidism. It may be cervical bone hyperplasia in the early stages of cervical spondylosis. Go to the hospital to see an orthopedic surgeon. Maintaining the same posture for a long time will cause cervical spondylosis, frozen shoulder, lumbar spondylosis, mouse hand, etc.